car runs like SHAT

[Illestdrift]

IT idles way high like 1500, but its at the stock timing mark... Then after like 1 minute it idles really low then seems to starve out then die. i checked the spark, timing, and ecu code was an all clear 55. Im fresh outta ideas! any help would rock my world!
Thanks

[Kn1ves]

clogged fuel filter?

[stinky_180]

adjust your idle... theres a screw... follow the procedure outlined in the factory service manual!

[Codrifter]

you may have a leaking or disconected vacum line, i had a similar condition.